CN108865095A - A kind of application of high-temperature corrosion inhibitor in tertiary oil recovery - Google Patents
A kind of application of high-temperature corrosion inhibitor in tertiary oil recovery Download PDFInfo
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- CN108865095A CN108865095A CN201811072494.9A CN201811072494A CN108865095A CN 108865095 A CN108865095 A CN 108865095A CN 201811072494 A CN201811072494 A CN 201811072494A CN 108865095 A CN108865095 A CN 108865095A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/54—Compositions for in situ inhibition of corrosion in boreholes or wells
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/584—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific surfactants
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/594—Compositions used in combination with injected gas, e.g. CO2 orcarbonated gas
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/32—Anticorrosion additives
Abstract
The invention discloses a kind of high-temperature corrosion inhibitors used for tertiary oil recovery, the high-temperature corrosion inhibitor and foam flooding, foaming agent, foam stabilizer, surfactant compatibility, or it is driven with poly-/table binary, polymer, surfactant compatibility, it is greater than 89 degree using with formation temperature, formation water salinity is greater than 22000mg/L, hardness is greater than 800mg/L, chloride ion content is greater than the tertiary oil recovery block of 18000mg/L, the high-temperature corrosion inhibitor and foam flooding compatibility, the surfactant is any surfactant for being used for tertiary oil recovery, the high-temperature corrosion inhibitor and poly-/table binary drive compatibility, when use, high-temperature corrosion inhibitor sewage is matched and displacement of reservoir oil host agent mixed diluting to 100-500ppm.That the object of the present invention is to provide a kind of preparation processes is simple, corrosivity is low, bactericidal effect is good, corrosion inhibiting ability is strong, with the good high-temperature corrosion inhibitor used for tertiary oil recovery of oil recovery chemicals compatibility.
Description
Technical field
The present invention relates to petroleum recovering technical fields, more particularly to one kind to be used for high-temperature corrosion inhibitor used for tertiary oil recovery, uses
Sewage is matched, sewage note technology improves frothing percentage and half-life period after driving compatibility with foam flooding, poly-/table binary, keeps original viscous
Degree and surface tension.
Background technique
Oil exploitation process is generally divided into three phases, and the primary oil recovery stage relies primarily on stratum self-energy driving petroleum
Flowing in underground；With the reduction of bottom energy, needs to displace petroleum to oil-bearing stratum flooding (or gas etc.) on ground, become
Secondary oil recovery.Currently, majority oil field in China's has been in the later period of secondary oil recovery, there is nearly 90 tons of water in every hundred tons of extraction liquid, and one
Platform pumping unit one is close on 200000 degree of electric consumptions on drawing water.
Tertiary oil recovery refers to by injecting the oil production method that chemical substance displaces crude oil to underground, also known as improves recovery ratio
(EOR) method.There are many method for improving oil recovery, mainly have following some：Infuse surfactant；Polymer injection thickening
Water；Caustic waterflooding is driven；Infuse CO2It drives；Note alkali adds polymer flooding；Inert gas injection drives；Infuse hydrocarbon miscible flooding；Combustion in situ；Steam injection
Drive etc..In tertiary oil recovery foam flooding technology implementation process, due to O2、CO2Effect, easily cause injection well ground injection
The corrosion of pipeline, down-hole string, casing and ground installation.It is high to inject water oxygen level, causes " the oxygen uptake of process equipment, pipeline
Corrosion "；The content of carbon dioxide is high, forms " micro cell " in process equipment, duct wall and causes " gas-evolving electrodes ", technique is caused to set
Standby and pipeline corrosion, influences to produce.All contain sulfate reducing bacteria (SRB), saprophytic bacteria (TGB) due to general in reinjected water
A series of micro- lifes of bacterium for being unfavorable for water flood recovery such as easily cause metal erosion, formation blockage, chemical agent rotten with iron bacteria etc.
Object.Reinjected water contains higher calcium ions and magnesium ions simultaneously, waterflood-transmission line and stratum serious scale is also easy to produce, so as to cause waterflood-transmission line
And formation blockage, these all cause huge economic loss to oil field production run.Process equipment, the intact of pipeline are that project is suitable
Therefore it carries out corrosion protection and sterilization is of great significance to the implementation of tertiary oil recovery technology in the basis that benefit is implemented.Dagang Oilfield
Since carrying out tertiary oil recovery field test 15 years, implement scale is increasing, develops to entire fault block by initial stage several well groups, adopts
Tertiary oil recovery technology method also from original single polymer flooding, develop to microorganism drives, micro-crosslinked polymer drives, alkali/
Polymer binary combination flooding, injection technology and matched process technology also gradual perfection are established and are adapted under different oil extraction methods
Injection technology and matched process technology.Dagang Oilfield takes the lead in having carried out " sewage is matched, sewage is infused " technical research, achieves and makes us looking steadily
Purpose achievement.But sewage quality is complex, salinity, hardness (Ca2+、Mg2+)、Fe2+, microorganism, oxygen content etc. it is right
Synandrium agent, the use of pipeline, equipment impact.It is molten using sewage prepared polymer since oilfield sewage ingredient is extremely complex
To the viscosity of polymer solution there are different degrees of degradation, main cause is the salinity, chemical oxygen consumption (COC) and dirt of sewage for agent
The sulfate reducing bacteria contained in water and saprophytic bacteria etc. cause polymer to generate serious degradation, and the suspension content in sewage
It when higher, can also make dissolubility, the bad stability of polymer, result even in polymer flocculation sedimentation, therefore use phase
The medicament answered, so that sewage is matched, performance, viscosity, the surface tension etc. of sewage note, unaffected, the present invention relates to petroleum recoverings
Technical field, more particularly to it is a kind of for high-temperature corrosion inhibitor used for tertiary oil recovery, match with Dagang Oilfield foam flooding, poly-/table binary drive
Wu Hou improves frothing percentage and half-life period, keeps original viscosity and surface tension.
Summary of the invention
In view of the above-mentioned problems, the object of the present invention is to provide one kind be used for high-temperature corrosion inhibitor used for tertiary oil recovery, with foam flooding,
After poly-/table binary drives compatibility, frothing percentage and half-life period are improved, original viscosity and surface tension are kept.Kind preparation process letter
List, corrosivity is low, bactericidal effect is good, corrosion inhibiting ability is strong and the good high temperature inhibition used for tertiary oil recovery of oil recovery chemicals compatibility
Agent.
The technical proposal adopted by the invention to solve the above technical problems is that：A kind of high-temperature corrosion inhibitor is in tertiary oil recovery
Using, it is characterised in that：The high-temperature corrosion inhibitor and foam flooding, foaming agent, foam stabilizer, surfactant compatibility, or with it is poly-/
The drive of table binary, polymer, surfactant compatibility are greater than using with formation temperature greater than 89 degree, formation water salinity
22000mg/L, hardness are greater than 800mg/L, and chloride ion content is greater than the tertiary oil recovery block of 18000mg/L,
The high-temperature corrosion inhibitor and foam flooding compatibility, improve frothing percentage and half foam life period, and the surfactant is to appoint
Meaning is used for the surfactant of tertiary oil recovery, after high-temperature corrosion inhibitor compatibility, keeps its original interfacial tension, the high temperature is slow
It loses agent and poly-/table binary drives compatibility, guarantee its original viscosity and interfacial tension,
The high-temperature corrosion inhibitor includes alkyl imidazoline：20-25%；Diethylenetriamine：13-20%；Rosin amine：5-8%；
Dodecyl dimethyl benzyl chloride：0.5-1%；Trimethoprim：0.1-0.5%；Dispersing agent：10-20%；Dimension life
Plain C：0.03-1%；Remaining is water；The sum of weight percentage of each component is 100%；
In use, high-temperature corrosion inhibitor sewage is matched and displacement of reservoir oil host agent mixed diluting to 100-500ppm.
The high-temperature corrosion inhibitor addition concentration is 0-500ppm, with foam flooding compatibility, improves frothing percentage and half foam life period
0-30%.
The high-temperature corrosion inhibitor addition concentration is 0-500ppm, and the interfacial tension variation difference of surfactant is less than 1%.
The high-temperature corrosion inhibitor addition concentration is 0-500ppm, drives compatibility with poly-/table binary, viscosity and interfacial tension become
Change difference less than 1%.
A kind of high-temperature corrosion inhibitor used for tertiary oil recovery, weight percentage of each component are：Alkyl imidazoline：20-25%；Divinyl
Triamine：13-20%；Rosin amine：5-8%；Dodecyl dimethyl benzyl chloride：0.5-1%；Trimethoprim：0.1-0.5%；
Dispersing agent：10-20%；Vitamin C：0.03-1%；Remaining is water；The sum of weight percentage of each component is 100%.
Preferably, the dispersing agent is the middle phase micro-emulsified that kerosene, water, surfactant, cosurfactant are mixed to form
Liquid type dispersing agent, particle size analysis is 20-100nm in dispersing agent.
Preferably, the surfactant is nonionic surfactant.
Preferably, the nonionic surfactant is fatty alcohol polyoxyethylene ether or alkyl phenol polyoxyethylene ether.
Preferably, the surfactant is diglycollic amide glycerol stearate monoesters, lignosulfonates, heavy alkyl benzene
Sulfonate, alkylsulfonate (petroleum sulfonate) are one of.
Preferably, the cosurfactant be ethyl alcohol, normal propyl alcohol, isopropanol, n-butanol, isobutanol, n-amyl alcohol wherein
One of.
The foam flooding is that (air foam flooding shaft improves recovery efficiency technique and air drive and foam flooding combine, and has
There is the double action of profile control and the displacement of reservoir oil.Foam is scattered in the dispersion system formed in liquid by insoluble or microsolubility gas.By
Fluid film surrounds gas and forms single bubble, and foam is then the aggregation of gas, and lifting gas is dispersed phase, liquid
Body is decentralized medium.)
The foaming agent is that (foaming agent is exactly that foam pore is led to by the variation of the physical aspect of a certain substance
The expansion of overcompression gas, the volatilization of liquid or the dissolution of solid and formed.Foaming agent surface-active with higher, can have
Effect reduces the surface tension of liquid, and arranges in liquid film surface electric double layer and surround air, forms bubble, then by single isolated bubbles
Form foam.)
The foam stabilizer is that (foam stabilizer refers to the surfactant that permanent performance is kept with extension and stable foam.Energy
The structural stability for enough controlling air bubble liquid-membrane makes surfactant molecule in the Methodistic distribution of the liquid film of bubble, assigns foam
Good elasticity and self-reparing capability.)
The surfactant is (anionic surfactant.It is a kind of complex mixture of different molecular.Its molecular weight
The relative solubility in You Heshui is influenced, hydrophobicity and hydrophily are also influenced.It is mainly used for the displacement of reservoir oil that the phase is adopted in oil field three, makees
With being to reduce oil water interfacial tension, displacement efficiency is preferably improved.Using chemical cooperated effect, improve water drive swept volume,
The residual oil for being detained stratum " washing by force " is come out on the basis of reduction oil and water mobility ratio, to improve oil recovery factor.)
Poly-/table binary is driven：The mutual synergistic effect of polymer and surfactant, makes polymer chain conformation change.It influences
The physicochemical properties of surfactant solution.Make the parameters such as solution interface tension, critical micelle concentration and aggregation number and solution rheology
Property, the stability of colloidal dispersion system, the solubilizing amount of Interfacial Adsorption behavior and aqueous solution change.By surfactant and gather
Acrylamide organically combines, and reaches reduction oil water interfacial tension, improves oil displacement efficiency, while improving swept volume, is finally reached
Improve the desired effect of oil recovery factor.
The advantage of the invention is that：
High-temperature corrosion inhibitor product used for tertiary oil recovery is using modified imidazole hyamine as effective component, and the ingredient is in metal surface
With suction-operated, a kind of adsorbed film that can be adsorbed on metal surface is formd, this film prevents the ion in acid solution close to gold
Metal surface, so that corrosion of metal speed be made to slow down, the ingredient is nontoxic, use cost is low, and preparation process is simple, product thermostabilization
It is functional, it is good with tertiary oil recovery foam flooding medicament compatibility, the performance indicators such as frothing percentage and half-life period, pH value can be promoted
Use scope is wide, corrosion inhibiting ability is strong, still has good using effect in 90 DEG C, the medium of salinity 20000mg/L, with oil recovery
Chemicals compatibility is good；By addition dodecyl dimethyl benzyl chloride and Trimethoprim, can effectively kill in reinjected water
Sulfate reducing bacteria (SRB), saprophytic bacteria (TGB) and iron bacteria.
Specific embodiment
Below by specific embodiment, the invention will be further described, and it is not limit that following embodiment, which is descriptive,
Qualitatively, this does not limit the scope of protection of the present invention.
Embodiment 1：
A kind of high-temperature corrosion inhibitor used for tertiary oil recovery, each component mass fraction are as follows：
Alkyl imidazoline：20 parts；Diethylenetriamine：15 parts；Rosin amine：6 parts；Dodecyl dimethyl benzyl chloride： 0.5
Part；Metopycide (TMP)：0.5 part；Dispersing agent：15 parts；Vitamin C：1 part；Water：23 parts.
The preparation method of above-mentioned high-temperature corrosion inhibitor used for tertiary oil recovery is：The alkyl miaow of said ratio is added in four-hole boiling flask
Oxazoline, diethylenetriamine, addition need to be added the 10% of water, and heating is heated to 78 DEG C, stirs 1h, is then proportionally added into 12
Alkyl dimethyl benzyl chloride, metopycide (TMP), dispersing agent, vitamin C, rosin amine after stirring 30min, are added
Remaining water obtains the compound acidification corrosion inhibitor of high temperature after mixing.
Embodiment 2：
A kind of high-temperature corrosion inhibitor used for tertiary oil recovery, each component mass fraction are as follows：
Alkyl imidazoline：25 parts；Diethylenetriamine：16 parts；Rosin amine：7 parts；Dodecyl dimethyl benzyl chloride： 0.6
Part；Trimethoprim：0.5 part；Dispersing agent：15 parts；Vitamin C：0.05 part；Water：20.85 parts.
The preparation method of above-mentioned high-temperature corrosion inhibitor used for tertiary oil recovery is：The alkyl miaow of said ratio is added in four-hole boiling flask
Oxazoline, diethylenetriamine, addition need to be added the 10% of water, and heating is heated to 78 DEG C, stirs 1h, is then proportionally added into 12
Alkyl dimethyl benzyl chloride, metopycide (TMP), dispersing agent, vitamin C, rosin amine after stirring 30min, are added
Remaining water obtains the compound acidification corrosion inhibitor of high temperature after mixing.
Embodiment 3：
A kind of high-temperature corrosion inhibitor used for tertiary oil recovery, each component mass fraction are as follows：
Alkyl imidazoline：23 parts；Diethylenetriamine：15 parts；Rosin amine：7 parts；Dodecyl dimethyl benzyl chloride： 0.5
Part；Trimethoprim：0.5 part；Dispersing agent：15 parts；Vitamin C：0.05 part；Water：22.95 parts.
The preparation method of above-mentioned high-temperature corrosion inhibitor used for tertiary oil recovery is：The alkyl miaow of said ratio is added in four-hole boiling flask
Oxazoline, diethylenetriamine, addition need to be added the 10% of water, and heating is heated to 78 DEG C, stirs 1h, is then proportionally added into 12
Alkyl dimethyl benzyl chloride, metopycide (TMP), dispersing agent, vitamin C, rosin amine after stirring 30min, are added
Remaining water obtains the compound acidification corrosion inhibitor of high temperature after mixing.
Embodiment 4：
A kind of high-temperature corrosion inhibitor used for tertiary oil recovery, each component mass fraction are as follows：
Alkyl imidazoline：22 parts；Diethylenetriamine：18 parts；Rosin amine：5 parts；Dodecyl dimethyl benzyl chloride： 0.7
Part；Trimethoprim：0.4 part；Dispersing agent：14 parts；Vitamin C：0.05 part；Water：23.85 parts.
The preparation method of above-mentioned high-temperature corrosion inhibitor used for tertiary oil recovery is：The alkyl miaow of said ratio is added in four-hole boiling flask
Oxazoline, diethylenetriamine, addition need to be added the 10% of water, and heating is heated to 78 DEG C, stirs 1h, is then proportionally added into 12
Alkyl dimethyl benzyl chloride, metopycide (TMP), dispersing agent, vitamin C, rosin amine after stirring 30min, are added
Remaining water obtains the compound acidification corrosion inhibitor of high temperature after mixing.
High-temperature corrosion inhibitor product used for tertiary oil recovery is using modified imidazole hyamine as effective component, and the ingredient is in metal surface
With suction-operated, a kind of adsorbed film that can be adsorbed on metal surface is formd, this film prevents the ion in acid solution close to gold
Metal surface, so that corrosion of metal speed be made to slow down.The ingredient is nontoxic, use cost is low.Specific experiment data are shown in Table 1.
Table 1
High-temperature corrosion inhibitor product used for tertiary oil recovery and tertiary oil recovery foam flooding medicament compatibility are good, can be promoted frothing percentage with
The performance indicators such as half-life period, specific experiment data are shown in Table 2.
Table 2
High-temperature corrosion inhibitor product used for tertiary oil recovery is wide with pH value use scope, corrosion inhibiting ability is strong, in 90 DEG C, salinity
Still there is good using effect in the medium of 20000mg/L, it is good with oil recovery chemicals compatibility.High temperature inhibition used for tertiary oil recovery
The technical indicator of agent is shown in Table 3.
Table 3
| Dosage/mg/L | Viscosity/mPa.s | |
| Embodiment 1 | 0 | 150 |
| Embodiment 2 | 50 | 152 |
| Embodiment 3 | 70 | 155 |
| Embodiment 4 | 100 | 155 |
It is good with polymer compatibility, polymeric system viscosity can be improved in various degree
| Dosage/mg/L | Interfacial tension/mN/m | |
| Embodiment 1 | 0 | 2.77×10-3 |
| Embodiment 2 | 50 | 8.52×10-3 |
| Embodiment 3 | 70 | 6.49×10-4 |
| Embodiment 4 | 100 | 5.78×10-4 |
It is good with surfactant compatibility, interfacial tension can be reduced.
High-temperature corrosion inhibitor product used for tertiary oil recovery to sulfate reducing bacteria in oil field reinjection water (SRB), saprophytic bacteria (TGB) and
Iron bacteria etc. has preferable bactericidal effect, and the bactericidal effect table of embodiment is as shown in table 4：
Table 4
As can be seen from the above table, the product of the embodiment of the present invention 1, embodiment 2, embodiment 3 and embodiment 4 goes back to oil field
The bactericidal effect of the bacteriums such as sulfate reducing bacteria, saprophytic bacteria and iron bacteria in water filling is excellent, and it is right in the present invention to fully meet
The requirement of the bactericidal effects such as sulfate reducing bacteria (SRB), saprophytic bacteria (TGB) and iron bacteria in oil field reinjection water.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, those skilled in the art should understand that：Its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (5)
1. a kind of application of high-temperature corrosion inhibitor in tertiary oil recovery, it is characterised in that：The high-temperature corrosion inhibitor and foam flooding, foaming
Agent, foam stabilizer, surfactant compatibility, or with poly-/drive of table binary, polymer, surfactant compatibility, using with stratum temperature
Degree is greater than 22000mg/L greater than 89 degree, formation water salinity, and hardness is greater than 800mg/L, and chloride ion content is greater than 18000mg/L
Tertiary oil recovery block,
The high-temperature corrosion inhibitor and foam flooding compatibility, improve frothing percentage and half foam life period, and the surfactant is any use
After the surfactant of tertiary oil recovery, with high-temperature corrosion inhibitor compatibility, its original interfacial tension, the high-temperature corrosion inhibitor are kept
Compatibility is driven with poly-/table binary, guarantees its original viscosity and interfacial tension,
The high-temperature corrosion inhibitor includes：Alkyl imidazoline：20-25%；Diethylenetriamine：13-20%；Rosin amine：5-8%；Ten
Dialkyl dimethyl benzyl chloride：0.5-1%；Trimethoprim：0.1-0.5%；Dispersing agent：10-20%；Vitamin C：0.03-
1%；Remaining is water；The sum of weight percentage of each component is 100%；
In use, high-temperature corrosion inhibitor sewage is matched and displacement of reservoir oil host agent mixed diluting to 100-500ppm.
2. a kind of application of the high-temperature corrosion inhibitor according to claim 1 in tertiary oil recovery, which is characterized in that the high temperature
It is 0-500ppm that corrosion inhibiter, which adds concentration, wherein alkyl imidazoline ingredient as amphoteric ionic surfactant and foaming agent,
Foam stabilizer compatibility improves frothing percentage and half foam life period 0-30%.
3. a kind of application of the high-temperature corrosion inhibitor according to claim 1 in tertiary oil recovery, which is characterized in that the high temperature
It is 0-500ppm that corrosion inhibiter, which adds concentration, and wherein diethylenetriamine ingredient as emulsifier, surfactant and improves recovery ratio
0-30% is reduced with the interfacial tension of surfactant compatibility, surfactant.
4. a kind of application of the high-temperature corrosion inhibitor according to claim 1 in tertiary oil recovery, which is characterized in that the high temperature
It is 0-500ppm that corrosion inhibiter, which adds concentration, and wherein rosin amine component is made to reduce 0- with anionic polyacrylamide compatibility, viscosity
30%.
5. a kind of application of the high-temperature corrosion inhibitor according to claim 1 in tertiary oil recovery, which is characterized in that the high temperature
It is 0-500ppm that corrosion inhibiter, which adds concentration, drives medicament system compatibility with poly-/table binary, system viscosity reduces 0-30%, interface
Tension reduces 0-30%.
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